Philipsburg is a town in and the county seat of Granite County, Montana, United States. The population was 914 at the 2000 census. The town was named after the famous mining engineer Philip Deidesheimer, who designed and supervised the construction of the ore smelter around which the town originally formed.
Philipsburg is located at 46°19′59″N 113°17′48″W / 46.33306°N 113.29667°W / 46.33306; -113.29667 (46.333108, -113.296564).
According to the United States Census Bureau, the town has a total area of 0.8 square miles (2.1 km²), all of it land.